Autoimmune Support
These medicines reduce or modify immune activity in autoimmune disease and transplant care. Treatment is condition-specific and usually requires specialist oversight, laboratory monitoring and infection precautions.

Methotrexate Tablets
2.5mg
Methotrexate 2.5mg tablets, used in the management of rheumatoid arthritis, psoriasis and Crohn's disease. A folic acid antagonist blocking dihydrofolate reductase.
Key points
- Immunosuppressants and disease-modifying antirheumatic drugs differ in onset, monitoring, pregnancy risks and effects on infection defence.
- Blood counts and liver, kidney or medicine-level tests may be needed before and during treatment.
- Do not stop a transplant or autoimmune medicine without the treating team, because disease flare or transplant rejection can be serious.
Listings are for comparison and general information, not a treatment recommendation; suitability and supply depend on specialist, clinician and pharmacy checks, prescription requirements and monitoring.
How the medicine groups differ
Tacrolimus and ciclosporin require careful interaction and, in many cases, blood-level monitoring. Azathioprine, methotrexate, leflunomide and mycophenolate mofetil have different organ, blood-count and reproductive risks. A medicine may have roles in more than one condition, but its monitoring plan is not transferable.
What these medicines are used for
This category includes medicines used for rheumatoid arthritis, systemic lupus erythematosus, psoriasis and prevention or treatment of transplant rejection. What they share is a damping effect on immune activity, but they differ widely in how selective that effect is, so one is rarely interchangeable with another. The diagnosis, not the category, decides which is appropriate.
Important safety checks
Tell the treating team about infection symptoms, vaccination plans, pregnancy or pregnancy planning, and every medicine or supplement. Live vaccines may be unsuitable during some treatments. Avoid changing brands, formulations or timing of transplant medicines without specialist and pharmacy confirmation.
When to seek urgent care
Seek prompt medical care for fever, breathing difficulty, a painful spreading rash, unusual bruising or bleeding, severe mouth ulcers, jaundice or markedly reduced urine. Transplant recipients should urgently contact their team for missed doses, persistent vomiting or possible rejection symptoms.
Further reading
Related articles

Learn why psoriasis creams, ointments, gels, solutions and shampoos are not interchangeable, and when extent or joint symptoms change treatment.
Read guide
Learn why alopecia areata treatment differs for a few recent patches, extensive loss, children and adults, and what JAK-inhibitor monitoring involves.
Read guide








